Hydrologic Inputs
Continuous Dynamic Engine
Rainfall Intensity
2.4 in/hr
Sustained cell convective precipitation rate
Storm Duration
6 hrs
Consecutive storm cell transit window
Soil Saturation Antecedent
78%
Antecedent moisture conditions limiting ground absorption
Urban Imperviousness
65%
Paved surfaces, concrete culverts, and structural footprint
At-Risk Population Exposed
14.2M
Municipal corridor populations in the path of threat cells
Hydro-Meteorological Telemetry
Midwest & Southwest (IL, TX, AZ)
Total Precip
14.4
cumulative inches
Runoff Coeff (C)
0.72
rational method
Estimated Runoff
10.37
effective runoff in.
Drainage Capacity
Overwhelmed (142% of baseline)
baseline cap: 7.30 in.
Hydrograph: Hyetograph & Runoff Volume Curve
Hourly Accumulation Model
Target Corridor Vulnerability Assessments
Illinois Basin
High Risk
Saturated agricultural catchments & metropolitan stormwater sewers at critical limit.
Texas Hill Country
Severe Risk
Limestone topography and rapid ravine water gathering create severe flash flood risks.
Arizona Desert Arroyos
Elevated Risk
Dry washes and baked caliche clay accelerate sudden high-velocity wall-of-water flash floods.
Emergency Response & Evacuation Protocols